428661103 has 16 divisors (see below), whose sum is σ = 499201920. Its totient is φ = 364478976.

The previous prime is 428661089. The next prime is 428661119. The reversal of 428661103 is 301166824.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 428661103 - 2¹⁷ = 428530031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428661173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10248 + ... + 31021.

It is an arithmetic number, because the mean of its divisors is an integer number (31200120).

Almost surely, 2^428661103 is an apocalyptic number.

428661103 is a deficient number, since it is larger than the sum of its proper divisors (70540817).

428661103 is a wasteful number, since it uses less digits than its factorization.

428661103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41346.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 428661103 is about 20704.1325102019. The cubic root of 428661103 is about 754.0000228666. Note that the first 4 decimals are identical.

The spelling of 428661103 in words is "four hundred twenty-eight million, six hundred sixty-one thousand, one hundred three".